Energetic analysis of different grassland management systems was carried out in 2003 at the Hruby Jesenik locality. The study aimed at evaluating the energy inputs and outputs (energy balance) on grassland of different utilization intensity. Four levels of utilization: extensive, low intensive, medium intensive and intensive, were considered. Applied nutrition and fertilization were as follows: A - PK 30 : 60 kg·ha⁻¹, B - NPK 90 : 30 : 60 kg·ha⁻¹, C - NPK 180 : 30 : 60 kg·ha⁻¹. In case of energy inputs the following data were recorded: used industrial and organic fertilizers in pure NPK nutrients (kg·ha⁻¹), the energy of engines (GJ·ha⁻¹), fuel consumption and the amount of human labour (man-hrs) per ha. The energy outputs included the biomass yield (t·ha⁻¹). On that basis the energy balance was made and energy gain and energy efficiency were calculated. Energy inputs ranged from 4.94 to 22.70 GJ·ha⁻¹. The highest energy requirement per production unit was noted at intensive and medium intensive and utilization. The highest energy gain was obtained at low intensive (x=128.21 GJ·ha⁻¹) and medium (123.18 GJ·ha⁻¹) utilization. At extensive utilization the average energy gain 112.18 GJ·ha⁻¹ was observed, while the lowest was achieved at intensively utilized vegetation (x = 102.09 GJ·ha⁻¹). From the viewpoint of energy gain and energy input intensity the utilization of grassland consisted in 3 or 2 cuts per year appeared to be most applicable.